Fluid injector



FIG. 1 is a front perspective view of the fluid injector;

FIG. 2 is a top side view of the fluid injector;

FIG. 3 is a left side view of the fluid injector;

FIG. 4 is a front side view of the fluid injector;

FIG. 5 is a rear side view of the fluid injector;

FIG. 6 is a right side view of the fluid injector; and,

FIG. 7 is a bottom side view of the fluid injector.

Throughout the figures, dashed lines represent a fluid injector container connected to the fluid injector. 

The ornamental design for a fluid injector, as shown and described. 